Please tell me how to configure mail server in quality center. Is there any online help? Pl let me know.
The adminstrative maual goes into the settings needed to configure your email settings to connect to your server.
you will need to know the server to use from your network group, and possibly any log in information to allow sending of mail messages.
Insanity: doing the same thing over and over again and expecting different results
Can you please explain it to me in detail. What is the use of this QC mail? Is it only for defect reporting?
Read the administrator's guide and the user's guide first.
For the most part - they will tell you what the mail function is and can be used for. If after that you have a more specific question, feel free to post it.
What you are asking for now is far too reaching for me to want to volunteer my time to help you. It is the reason manuals are created - to give you the introduction to the tools you have purchased.